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    Antivirus: These programs are designed to detect, prevent and remove malicious software
                          such as viruses, worms and ransomware that can compromise network security.

                          Encryption: Encryption is the process of converting data into a code to prevent unauthorised
                          access. It ensures that sensitive information transmitted over the network is unreadable to
                          attackers.
                          Virtual Private Networks (VPNs): A VPN enables secure remote access to a network
                          by creating an encrypted tunnel between the user's device and the network, preventing
                          eavesdropping on sensitive data.
                          Patch Management: Regularly updating software, applications and network devices with
                          security patches is essential to protect  against vulnerabilities that  could be exploited by
                          cybercriminals.

                      Types of Network Security

                      Network security refers to the activities designed to protect the usability and integrity of your
                      network and data. It involves both hardware and software technologies and aims to prevent a
                      variety of threats from entering or spreading across your network. Network security is managed
                      by the network administrator.

                      Networks can be classified into two types: private and public. A private network is typically used
                      within a company, while public networks are open for access by anyone.
                      There are two types of network security:

                          Login Security: This is done by assigning a unique login name and a corresponding password.
                          Users are assigned an ID and password or other authenticating information that allows them
                          access to information and programs in a network.
                          Rights Security: This is done by giving rights such as Read-Only-Access, Read-Write-Access
                          or No Access at all, to a user. Read-Only-Access means the user can only read the information
                          but  cannot  change  or  delete  it.  Read-Write-Access  means the  user  can  read,  change  or
                          delete the information. No Access means the user can not even read the information.

                             Restart

                             The computer network means the system of interconnected computers.
                             The different types of networks are PAN, CAN, LAN, MAN and WAN.
                             Various types of topologies used in a network are bus, star, tree, ring and mesh.
                             There  are  two  types  of  computer  network  architectures—peer-to-peer  network  and
                            client-server network.

                     14     Premium Edition-VIII

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